Libro de Resúmenes / Book of Abstracts (Español/English)
Libro de Resúmenes / Book of Abstracts (Español/English)
Libro de Resúmenes / Book of Abstracts (Español/English)
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Resumenes 42<br />
biological mo<strong>de</strong>ls we should contain the own uncertainties <strong>of</strong> the studied<br />
phenomenon.<br />
In this paper, we introduced another point <strong>of</strong> view <strong>of</strong> populational<br />
dynamics using the theory <strong>of</strong> fuzzy differential inclusions. We study the life<br />
expectations <strong>of</strong> a set <strong>of</strong> workers, supposing that the poverty be a factor that<br />
contributes to the increase <strong>of</strong> the rate <strong>of</strong> mortality. In this case, the<br />
poverty is a fuzzy set which has support varying with the time.<br />
Referencias<br />
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[2] Bassanezi,R.C. and Barros, L.C.(1995), ``A simples mo<strong>de</strong>l <strong>of</strong> life expectancy<br />
with subjetive parameters'', Kibernetes: Inter. Journal <strong>of</strong> Systems and<br />
Cybernetics, vol. 9, No 24, pp. 91-98.<br />
[3] Barros, L.C., Bassanezi, R.C. and Tonelli, P.A.(2000), ``Fuzzy mo<strong>de</strong>lling in<br />
population dynamics'', Ecological Mo<strong>de</strong>lling, vol. 128, No 2, pp. 27-33.<br />
[4] Chalco-Cano, Y., Rojas-Medar, M.A., and Brandão, A.J.V. (2004), ``On the<br />
differentiability <strong>of</strong> fuzzy-valued mappings and the stability <strong>of</strong> a fuzzy<br />
differential inclusion''. Submitted to publication.<br />
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quasilinear spaces'', Fuzzy Sets and Systems , V. 152, 173-190.<br />
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[7] M. Guo, Xiaoping Xue and R. Li, (2003).The oscillation <strong>of</strong> <strong>de</strong>lay differential<br />
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Mo<strong>de</strong>lling 37, 651-658<br />
[8] Krivan, V. and Colombo, G.(1998), ``A non-stochastic approach for<br />
mo<strong>de</strong>lling uncertainty in population dinamics'', Bulletin <strong>of</strong> Mathematical<br />
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[9] May, R.(1973), ``Stability in Ramdomly Fluctuating versus Deterministic<br />
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[10] Zhu, Yuanguo and Rao, Ling (2000), ``Differential Inclusions for Fuzzy<br />
Maps'', Fuzzy Sets Syst., vol. 112, pp. 257-261.